Safety-hook.



No. 633,099. Patented Sept. 12, I899.

W. MILLER.

SAFETY HOOK.

(Application filed July 18, 1899.)

(Na Model.)

HIM/v05 UNITED STATES PATENT OEEicE.

'WILLIAM MILLER, OF CHLORIDE, ARIZONA TERRITORY.

SAFETY-H0O K.

. SPECIFICATION forming part of Letters Patent No. 633,099, datedSeptember 12, 1899 Application filed July 18, 1399.

erial No. 724,298. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM MILLER, a citizen of the United States,residing at Chloride, in the county of Mojave, in the Territory ofArizona, have invented a new and use ful Safety-Hook, of which thefollowing is a specification.

My invention relates to hooks for attaching load-carrying devices tocables or ropes, by means of which they are raised or lowered; and theobject thereof is to provide a hook, by means of which a bucket or cagemay be quickly fastened to or unfastened from a rope or cable, and atthe same time will provide the maximum safety against the accidentalunfastening of the hook from the bucket or cage bail. I accomplish theseobjects by means of the mechanism described. herein and illustrated inthe accompanying drawings, in which- Figure 1 is a side View of mysafety-hook. Fig. 2 is an edge view of the same. Fig. 3 is a view of thelower end of the hook, showing the latch in its closed position and indotted lines in its open position for the reception of the bail of abucket or cage, the clip by which the latch is fastened in place in thehook being removed for eclearness of illustration. Figs. at and 5 are aside and end view of the clip by which the latch is fastened on theshank of the hook. Fig. 6 is a cross-section of my hook on line 6 6,Fig. 1. Figs. 7 and 8' are a side and end view of the latch. Figs. 9,10, and 11 are detached views of the catch. Figs. 12 and 13 are a sideand end view of the dust-plate, which excludes the dirt from the catch.

In the drawings, A designates the complete hook. On the upper end of theshank B is a swivel C, to which the rope or cable is fastened. Slidablymounted on shank B is latch D, in one end of which is pin D, whichenters recess E of body E of the hook. Latch D is held in slidingcontact on shank B by clip F, which passes around shank B and isfastened to latch D by bolts G, which pass through holes therethrough. Hare catches, eachhavingaprojectingflatarmH. Catches H have a slidingmotion at right angles to shank B in recesses 01 in latch D. One end ofcatches H are normally held shut by springs I, mounted in sockets d inlatch D in recesses which project through openings F in clip F, by meansof which the catch is opened.

J are slides to keep the dirt out of the catch, having holes J, whichfit over lugs H",to which they are fastened by screws K, which enter athreaded opening in lugs H.

Catch H, spring I, slide J, and screw K, with the recesses, are alikefor each side of the hook; but each set works independently of theother. Y

My device is operated as follows: Using for illustration an ore-bucketfor hoisting ore from a mine, the cable is fastened in swivel C. Bypushing on both slides J at the same time catches H are withdrawn fromrecesses b of shank B and latch D is permitted to slide up on shank B.The bail of the bucket is then placed in the hook and latch D isreturned to the position shown in Fig. 1, when the catches H will holdlatch D against accidental displacement, and the bucket is thereby keptattached to the hook and the safety of the miners from the accidentalunfastening of the bucket from the cable while it is being-hoisted isassured. One of the sources of danger in mining is the accidentalunfastening of the hoisting-bucket on its passage up and down the shaft,which frequently tion of property. This is frequently occa; sioned bythe hook by which the bucket is attached to the cable striking againstsome projecting piece of timber, which unfastens the catch on the hookand the accidental unfastening of the bucket follows. In my device suchaccidental unfastening of the hook from the bucket is practicallyimpossible, as I provide two catches which work independently, one oneither side of the .hook, and which must both be opened at the same timebefore the latch can be opened to permit the bail of the bucket or cagebeing withdrawn from the hook. The movement of these catches is at rightangles to the movement of the latch, which permits the release of thebail from the hook, so that it is an impossibility that any accidentalstriking of the hook would at the same time strike both the catches,(one being on each side of the hook,) retract them from their seats inrecesses in the shank and at the same time impart t0 the b in shank B.Catches H have lugs H,

latch a movement at right angles to the movement of the catch and thenthrow the hail of the bucket out of the hook, all of which successivemovement-s being necessary in order to remove the hail of the bucketfrom the hook. It will be observed that When it is desired to remove thebucket from the cable it is very easy to retract both catches and thenslide the latch and clip upon the shank and remove the bucket-bail fromthe hook.

Having described my invention, What I claim as new, and desire to secureLetters Patent, is

1. A safety-hook for attaching load-carrying devices to ropes and cablescomprising a hook having a shank, a latch slidably attached to theshank, intermediate the swivel and the body of the hook, adapted whenclosed to keep the hail of the load-carrying device from separating fromthe body of the hook; catches mounted in recesses in the latch, adaptedto enter recesses in the shank and keep the latch closed, and havingprojecting lugs to open said catches; springs mounted in the latch,adapted to keep the end of the catches in the recesses of the shank,substantially as described herein.

2. Safety-hook A, com prising shank B, having recesses 11; body E;swivel C on end of shank B; latch D slidably mounted on shank B; clip Fattached to latch D and passing around shank B; catches H provided witharm H and lugs H, slidably mounted in recesses d in latch D, and havingone end adapted to enter recesses bin shank B; spring I mounted inrecesses in latch D, and adapted to hold the end of catches II inrecesses b of shank B, substantially as described herein.

In witness that I claim the foregoing I have hereunto subscribed myname, this 11th day of July, 1899, at Los Angeles, California.

WILLIAM MILLER.

.Vitnesses:

G. E. HARPHAM, M. MoGINNIs.

